Question

a bag contains 5 red balls and n green balls if the probability of having a green ball is 3 times that of red ball, then what is tge value of n​

Answer 1

Answer:

red ball =5

green ball=red ball * 3

5*3=15

green ball = 15

Answer 2

Answer:

15

Step-by-step explanation:

Given, The bag contains 5 red balls and n green balls.

Total no. of balls = (5+n)

The probability of having a red ball is

5/(5+n)

The probability of having a green ball is

n/(5+n)

According to the question,

3×5/(5+n) = n/(5+n)

Dividing by (5+n) on both sides

3×5 = n

n = 15.